[Bug 82050] R9270X pyrit benchmark perf regressions with latest kernel/llvm

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82050

--- Comment #48 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to comment #46)
> I've seen some stutters without any corresponding buffer moves though. Still
> not sure why it's stuttering so bad sometimes.
> 
> BTW, Andy, does the stuttering also seem to get better for you if you run
> Valley repeatedly?

No, it's quite consistent if I quit and re-run.

The amount moved doesn't seem to correlate with the length of pause - and
sometimes there are small moves without stutter, so maybe it's not totally
this.

Looking at Heaven 4.0 there are no moves at all after load, but there are a few
very brief stutters on the night scenes - these are the same with or without
patch though.

What does num-bytes-moved measure - from where to where?

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